A further update. Sony have requested the original clips with the moire, and I have provided them with these. I have not been able to reproduce the effect with any other brickwork, roof tiles or other repeating patterns other than charts. There seems to be something about the particularly dark shade of bricks with very bright mortar (cement) that the F3 doesn’t like. In addition I have not heard from anyone else using an F3 out in the wild that is having any issues. At least now I know what to watch out for. The moire was only slight and my wife didn’t spot it until I pointed it out to her.
I am very pleased with the images I’m getting from my F3 having just finished my first paying job with it. It was nothing exciting, just a corporate shoot, but the shallow DoF and reduced amount of lighting required has resulted in some really nice footage of an otherwise dull subject. I can’t show you the clips due to client confidentiality, but the client likes the look a lot and it was easier to achieve than it would have been with a DSLR thanks to the proper video camera ergonomics.